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Evolutionary Characteristics of Urban Public Space Accessibility for Vulnerable Groups from a Perspective of Temporal–Spatial Change: Evidence from Nanjing Old City, China

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  • Ning Xu

    (School of Architecture, Southeast University, Nanjing 210096, China
    Jiangsu Provincial Urban and Rural Digital Technology Engineering Center, Nanjing 210096, China)

  • Pu Wang

    (School of Architecture, Southeast University, Nanjing 210096, China
    Jiangsu Provincial Urban and Rural Digital Technology Engineering Center, Nanjing 210096, China)

Abstract

Social equity/inequity and equal/unequal rights to the city extend beyond the distribution of urban parks and green spaces, necessitating research on equitable accessibility to encompass a broader range of public spaces. However, previous research has predominantly focused on green spaces, neglecting other types of public spaces. To address this gap, the present study takes the public space pattern of Nanjing Old City as the research object, employing the minimum distance method, the gravity potential method, and bivariate local Moran’s I to evaluate the matching relationship between the demand of socially vulnerable groups and the supply of public spaces, as well as its temporal–spatial evolution from 2010 to 2020. The results reveal spatial heterogeneity in the accessibility of public spaces for vulnerable groups at the block level, with 28.1% of the total number of blocks and 22.1% of the total area of blocks experiencing a supply–demand imbalance in 2010. From 2010 to 2020, under the rapid urban development, construction of public spaces, and the general decline in population density and proportion of vulnerable populations, the supply–demand imbalance has exacerbated the distribution of public spaces at both individual and aggregate levels. This imbalance is reflected in the deteriorated accessibility of public spaces for vulnerable groups. This study reveals the mismatches between development, population movement, and public space construction in the old city of Nanjing over the past decade, providing decision-making suggestions and foundations for the future optimization of public spaces, thereby offering an effective tool for assessing and improving the accessibility and equitable distribution of public spaces based on the needs of vulnerable groups.

Suggested Citation

  • Ning Xu & Pu Wang, 2024. "Evolutionary Characteristics of Urban Public Space Accessibility for Vulnerable Groups from a Perspective of Temporal–Spatial Change: Evidence from Nanjing Old City, China," Land, MDPI, vol. 13(7), pages 1-23, July.
  • Handle: RePEc:gam:jlands:v:13:y:2024:i:7:p:998-:d:1430056
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    References listed on IDEAS

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    3. Cohen, D.A. & McKenzie, T.L. & Sehgal, A. & Williamson, S. & Golinelli, D. & Lurie, N., 2007. "Contribution of public parks to physical activity," American Journal of Public Health, American Public Health Association, vol. 97(3), pages 509-514.
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